Clark Kent (Tom Welling) is really feeling his oats as he enters his senior year of high school. The hit TV series (an early-years ``prequel`` of sorts to the Superman legend) breaks new ground during the thrilling fourth season, with Clark heroically attempting to keep Kryptonian crystals from destroying Earth. The cast includes Kristin Kreuk as Lana Lang, Michael Rosenbaum as the young Lex Luthor and Allison Mack as Chloe Sullivan.